Roller dictionary and like



U8 2, 1966 A. N. ANDREWS 3,263,354

ROLLER DICTIONARY AND LIKE Filed July 10, 1951 5 Sheets-Sheet l 'f f4 4 10 i f5 nnnnn 1 QBLDEFCHIJNLMUPURSUVHXYZ f MT- EINE n uns MMLQU:

IN VENTOR:

Aug. 2, 1966 A. N. ANDREWS ROLLER DICTIUNARY AND LIKE 3 Sheets-Sheet 2 Filed July l0, 1961 I NVEN TORI Aug 2, 1966 A. N. ANDREWS ROLLER DICTIONARY AND LIKE Sheets-Sheet 5 Filed July l0. 1961 A? .IL

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NVEN T02 M WM United States Patent O 3,263,354 ROLLER DICTIONARY AND LIKE Anatol N. Andrews, 6033 Dauphin Ave., Los Angeles, Calif. Filed luly 10, 1961, Ser. No. 122,734 7 Claims. (Cl. 40-95) This invention relates to roller indexes and like, and more specifically to therein double reel, roller web, web variable exhibitor, tracking means, axially displaceable gear drive, alternate rotation of rollers and operating means, and is a roller dictionary and like which cornprises new and useful improvement reducing to practice one or more of the following novel objects of this invention.

Said objects of this invention are:

To provide means for allowing concentration to remain on one predetermined tracking point at a web variable exhibitor, having widthwise a plurality thereof, in conjunction with old tracking means arranged in a novel manner;

To provide means for reducing web length, without reducing reference contents thereof, in conjunction with old tracking line-like marks in a novel arrangement;

To provide means on the web for separating old tracking line-like marks from the reference contents whereby said tracking marks need not cross directly, and thereby obscure, said reference contents;

To provide means for reducing conventional Contact friction of rolling web against conventionally located components at conventional thereof points adjacent to web exhibitor;

To provide means for axially displacing gear drive automatically and responsive to reversal of turning direction of drive shaft;

To provide ratchet means in alternate rotation of rollers for releasing shaft of one roller from its respective roller gear when drive gear turning direction is reversed, .and vice versa;

To provide ratchet means in motorized alternate rotation of rollers for releasing roller shaft from de-actuated motor shaft when motor engages the shaft of other roller in predetermined turning direction, and vice versa;

To make features of this invention simple, practical, inexpensive and easy to operate.

To illustrate how the above and other objects o-f this invention can be practically achieved reference now is being made to the accompanying drawings.

In the drawings:

FIGURE l is a plan view for a device comprising some of the features of this invention.

FIGURE 2 is a cross-section taken at 2-2 of FIG- URE 1.

FIGURE 3 is a cross-section taken at 3 3 of FIG- URE l.

FIGURE 4 is a cross-section taken at 4-4 of FIG- URE 3.

FIGURE 5 is a side view o-f a device comprising some of the features of this invention, with its side 'Wall removed.

FIGURE 6 is a perspective View of similar device, assembled.

'FIGURE 7 is a sectional plan view for a modification comprising some of the features o-f this invention.

FIG'URE 8 is a sectional side view taken at 8-8 of FIGURE 7, and of means -for reducing drag of a conventional component against roller web, and mounting for said means.

FIGURE 9 is cross-sectional side View of substantially similar means shown in FIGURE 8, in its respective mounting.

ICC

turned contra-clockwise.

FIGURE 1l is the same view as in FIGURE 10 and shows, sidewise progressing to the left, variable positions of drive gear and shaft when latter begins to :be turned clockwise from position in FIGURE l0.

FIGURE 12 is the same View as in FIGURE l() and shows drive gear and shaft fully progressed sidevvise to the left when drive shaft continues to be turned clockwise.

FIGURE 13 is a plan View of a device comprising some of the features of this invention and shows motorized mechanism for alternate rotation of rollers, and ccmprising ratchet means substantially as disclosed in FIG- URES 2 and 3, `and shows shaft of upper roller engaged iby shaft of actuated motor, and shaft of lower roller released from shaft of deactuated motor.

In reference to the drawings:

In FIGURE 1 the surface of elongated web 8 has the right side thereof marked with dictionary contents arranged in one column, `and the left side marked only with conventional tracking lines 13A-IGZ, for keeping said `lines so separated from the dictionary references and from crossing latter directly Iand thus from obscuring the words therein.

Otherwise the tracking lines 13A-13Z are conventionally wid'thwise separated from each other and lengthwise successive and lparallel to each other; the tracking line 13A sidewise opposite and lengthwise corresponding to the length of dictionary column-section composed of lengthwise successive references starting With letter A; the following tracking line-likewise respectively opposite `and of length as respective column-.section composed of references beginning with letter B; and so on alpha- .betically down to and including tracking line 1'3Z.

One end of web S in double reel is conventionally secured with shaft 9, and the other end likewise with shaft 10. Shafts 9 and 10 are turnably held substantially apart and parallel to each other by their respective offset ends loosely inserted into suitable holes in the opposite to each other side Walls of base 11 indicated in FIGURE 1, and shown in FIGURE 6.

Conventional guard-disks 12A and 121B are conventionally secured with shaft 9; likewise disks 12C and 12D with shaft 10; for conventionally keeping web 8 from slipping sidewise when it is being; wound forth and back over said shafts respectively.

Slotted cover plate 19 is stationary held over variable section lof web 8 between shafts 9 and 10. The indicated slot in plate 19 is adapted for exhibiting therethrough variable section and thereof contents of web 8. Plate 19, over its slot, has thereon an alphabet marked so that each letter thereof respectively lines up with only one of the respective tracking lines, i.e., A to Z with 13A to 13Z, respectively, as shown in FIG- URE 1.

Thus, when slot of plate 19 exhibits a tracking line lining up with, for instance, letter M on plate 19 (as shown in FIGURES l and 6), an observer will know that said s-lot also exhibits a dictionary word starting with letter M, and that reading said word in this device would be easier than in a conventional arrangement since here the so exhibited words of the dictionary are not obscured by crossing tracking line.

As a matter of discretion .a m-agnier may be secured in the slot of plate 19 over variable thereunder section of web 8.

However, in the course of sliding the web 8 would encounter frictional contact with so secured conventional magnifier which would create drag against sliding of said web 8.

To reduce drag against sliding web 8 an easily turnable roller is herein conceived to replace conventionally stationary components coming in frictional contact with sliding sections of web 8 between shafts 9 and 10, for instance, magnifier roller (FIGURES 1, 5 and 6), instead of conventional magnifier, may be turnably secured in the slot of plate 19 (FIGURE l) in a similar manner and mounting as shown in FIGURES 7 and 8 in regard to likewise roller 26 and where cover plate has web exhibiting slot similar to the slot in plate 19, and at the ends thereof opposite to each other are protrusions 27A and 27B between which protrusions roller 26 is loosely inserted into the slot and turnably held there by pins secured in said protrusions and extended into and loosely fitted in the slight pin point in-dentations in the respective centers of each of the end sides of roller 26, respectively; or, for example, roller (FIGURE 9) or plurality thereof held parallel to each other, may be turnably secured against variable section of sliding web 30C in place of and replacing the common stationary supports 20A (FIGURE 5) and/or 28 (FIGURE 8) which supports are conventionally adapted for holding variable section of web 8 (FIG- URES 1 and 5) or web 21 (FIGURES 7 and 8) for better exhibition close to the exhibiting slots of cover pl-ates 19, 25 and like in devices of this class. In FIG- URE 9 the mounting of roller 30 is accomplished in a manner substantially the same as shown in FIGURE 8, i.e., roller 30 has slight pin point indentations 30a and 30b in the center of each respective end side, and is turnably held between opposite to each other walls of suitable supporting structure 31 by means of pins 31a and 31b secured in said walls and respectively extended into and loosely fitted in said indentations 30a and 30b.

Of course, mountings of rollers for holding them easily turnable are old, many and may be widely Varied, and the herein illustrated mountings are merely practical examples of mountings suit-able for the herein novel idea of providing means for reducing conventional drag on sliding web by conventionally used components needed or desired in devices of this class.

When rollable web in a device of Ithis class and using the described conventional tracking lines has to comprise a great number of lengthwise alphabetically arranged references, as, for instance, in a practical dictionary or a large telephone directory, means are herein provided for reducing the conventionally therefor required web length without reducing the contents thereof, and for simultaneously allowing, in a device with web variable exhibitor with various variable references spread widthwise thereon, the concentration, required in tracking and observing a predetermined reference, to remain on one only predetermined point at such variable exhibitor throughout the entire operation, by means substantially as illustrated in FIGURE 7 where contents of a large dictionary are marked on roller web 21 in five separate and parallel to each other columns, which apparently reduces the length, but not the contents, of web 21 five times as compared with a web with the same contents conventionally marked on ta web in one column. Contrary to another convention, in FIGURE 7 none of said columns contains any reference starting with the same letter as any reference in any of the remaining four columns. In FIGURE 7 the first (from left to right) column contains lengthwise alphabetically grouped in units references starting with letters A, B and C only, respectively; the second column--with letters D. E, F, G, H and I only: the third-with J, K, L, M, N, O and P; the fourth-with Q, R, S; and the fth-with T, U, V, W, X, Y and Z.

f This seeming unevenness in said arrangement takes into consideration and compensates for unevenness in the i number of references in different lalphabetical groups in dictionaries, directories and like, i.e., there are, for instance, more Words starting with letter A, than, for example, with letter Z, and so on.

Web 21 has also marked thereon the conventional tracking lines previously described and substantially similar to tracking lines 13A-13Z in FIGURE 1, and in substantially similar respective relationship with respective reference units, except that in FIGURE 7 Ithey are differently arranged on web 21, i.e., on the latter there are only three of such lines on the rst column, six on the second column, seven on the third, three on the fourth, and seven on the fth column, marked substantially as shown in FIGURE 7, and each line respectively across and of length correspondin-g to the length of its respective reference unit.

In the indicated double reel one end of web 21 is conventionally secured with shaft 22, and the other end with shaft 23. Shafts 22 and 23 are substantially like shafts 9 and 10 in FIGURE l and can be likewise secured and operated.

`Conventional guard-disks 24A and 24B are conventionally secured with shaft 22, likewise disks 24C and 24D with :shaft 23, for conventionally keeping web 21 from slipping sidewise when it is being wound forth and back over said shafts respectively. Slotted plate 25 is stationary held over variable section of web 21 between shafts 22 and 23. Slot in plate 25 is adapted for exhibiting therethrough a variable section and thereof widthwise spread variable references of Web 21.

Magnifier roller 26 is secured as heretofore described in said slot to magnify contents of the exhibited variable section of web 21 thereunder.

vPlate 25, over its slot, has thereon an alphabet marked so that each letter thereof lines up respectively with only one of above said tracking lines, substantially as indicated in FIGURE 7; however, because ,of disclosed novel arrangement, here, when slot of plate 25 exhibits a variable section -of web 21, such section may contain and exhibit widthwise simultaneously ya variable section of each of the five columns and a section of one and different tracking line over each exhibited variable section of each column respectively. An observer, however, who in this device is looking for a predetermined word starting, for example, with letter N, apparently may remain concentrated on only one predetenmind point in plate 25 while web 21 slides thereunder, i.e., in the exampled instance on point in plate 25 directly under mark N, and just watch for the tracking line to appear in line therewith; then, upon stopping the sliding of web 21, the `observer will nd at the very same and only point of observation, and at no other.

sidewise removed point or points, word starting with letter N. Then, to track a predetermined word starting with said letter N, web 21 is wound slowly forth and/or back while the tracking line remains opposite said N mark and until the predetermined word appears directly thereunder. Thus, here, the observer will not need .to search for said word sidewise forth and back as he would in a conventional device with web variable exhibitor showing simultaneously several variable sections of several parallel columns and using old tracking means arranged at one and removed side.

The conventional alternate rotation of rollers is considerably improved in lthis invention as follows: as shown in FIGURES l, 2 and 3 in the illustrated therein double reel arrangement the gear 14 and gear 15 are not conventionally (stationary) secured with their respective shafts 9 and 10, instead said gears are loosely mounted over said shafts respectively and are widthwise loosely held thereover in positions indicated in FIGURE l; gear 14 mounted over a well 9A (FIGURE 2) in shaft 9, and gear 15 over a well 10A (FIGURE 3) in shaft 10. The hollow of gear 14 (FIGURE 2) is not conventionally wholly round, instead it forms the shown ratchet brace in said gear; the hollow of gear 15 (FIGURE 3) foams the shown ratchet brace in gear 15 but in severse (opposite) to ratchet brace in gear 14, as can be observed by comparing FIGURES 2 and 3. Ratchet pin 14 (FIGURE 2) is loosely inserted into well 9A and tends to protrude therefrom by means of outwardly resilient spring 14B. Ratchet pin 15A (FIGURES 3 and 4) is loosely inserted into well 10A and tends to protrude therefrom by means of outwardly resilient spring B.

Due to lthis shown ratchet arrangement it is quite apparent that gear 14, being turned clockwise, will engage with shaft 9 and turn the latter likewise, but, when gear 14 is being turned contra-clockwise, it will not engage with shaft 9; on the other hand, the .gear 15, being turned contra-clockwise, will engage with shaft 10 and turn the latter likewise, but, when gear 15 is being turned clockwise, it will not engage with shaft 10. This novel ratchet arrangement in alternate `rotation of double reel rollers provides great advantage over conventional stationary securement of reel gears with their respective shafts whenever a displaceable gear drive is used.

For instance, sudden forceful stop of a fast rota-ting drive gear in conventional mesh with double reel may cause tear of the web. Likewise stop of the drive gear in described ratchet mesh with double reel apparently will cause no strain nor damage to the web; a fast turning in one direction separate drive gear in mesh with conventionally secured gear of one `of the double reels, being suddently moved sidewise for disengagement from said mesh and for likewise meshing with the `other reel for turning the latter in the opposite direction, will encounter numerous obstacles such as gear teeth binding, grinding, locking and even breaking, but similar operation with described ratchet features of this invention will obviously offer no difficulty nor damage to device components; la separate drive gear in mesh with conventionally secured `gear of one of the shafts of the double reel has to be turned continuously in order to keep said reel shaft turning in one direction, while the same drive gear in mesh with the same reel shaft via disclosed ratchet means may be conveniently moved forwardsbackwards-forwards, like in winding watch, to keep said reel shaft turning continuously in the one and the same direction, since here it is not stopped by stopping and even slightly reversing the drive gear.

Described ratchet means in conjunction with motorized alternate rotation of rollers in a double reel allows release from dead weight of deactuated motor shaft as illustrated in FIGURE 13 where the above described and shown in FIGURES 2 and 3 ratchet arrangement is used in a motorized gear drive.

Here the ratchet braces 32 and 33 are respectively, substantially, the same as described and shown in gears 14 and 1S, respectively; the respective shafts 34 and 36 of the shown web 36 double-reel have wells, ratchet pins and spring arrangements (37) which are substantially the same as described in reference to 3A, ltlA, 14A, 15A, 14B and 15B respectively (in regard to FIGURES 2, 3 and 4). Ratchet brace 32 is mounted over ratchet section of reel shaft 34, and brace 33 over ratchet section of reel shaft 35. Motor shaft 38 of clockwise electric motor 40 is stationary secured with brace 32, and motor shaft 39 of contra-clockwise electric motor 41 is likewise secured with brace 33; motor 4() is actuated through reostate 42; motor 41, through reostat 43.

Thus, when motor 40 is actuated, its shaft 33 will engage and rotate shaft 34 which will wind web 36 over the upper reel and cause lower reel and its shaft 35 to turn freely without carrying dead weight of deactuated motor 41; on the other hand, when motor 4t? is deactuated and motor 41 is actuated, its shaft 39 will engage shaft 35 via ratchet brace 33 which will rotate lower reel contraclockwise thus winding web 36 thereover and causing upper reel to rotate likewise, but the latter will rotate freely because its shaft 34 will become free from dead weight of deactuated motor 40 due to above described ratchet arrangement.

Apparently the reostats 42 and 43 may be operated by conventional means such as press buttons, keys and like substantially as indicated or in substantially the same manner as used in electric sewing machines or like. Evidently such device may be easily attached to a typewriter and the reostats operated alternately by two extra keys added to the typewriter key board, which would allow the typist to look for required references on web 36 practically without turning the head from the typewriter, nor removing hands from typewriter key board.

The conventional displaceable gear drives for alternate rotation of rollers in devices of this class are likewise considerably improved in this invention, as follows: prior hereto drive shafts in said drives had to be pushed and pulled sidewise manually for alternate displacement of their respective drive gears prior to alternating rotation of respective rollers in a web double reel arrangement.

Here, in FIGURE 1 is indicated and in FIGURES l0, ll and l2 is more clearly shown how in this invention the alternate displacement of drive gear for alternate rotation of the respective rollers is achieved automatically whenever turning direction of the drive shaft is continuously reversed.

Since FIGURES l0, ll and l2 show sections of device pertaining to above said feature and it is substantially the same section of likewise device as shown in a plan form in FIGURE l, the components are being identified by the same numbers in all of said figures for convenience of reference.

Drive gear 17 is stationary secured over and with drive shaft 16 at predetermined point thereon, and is of substantially larger diameter than reel gears 14 and 15, and its teeth are adapted to mesh with teeth of either gear 14 or gear 15. Drive-gear-17bushing 44 extends slightly over shaft 16 as shown in FIGURES l0, ll, l2 and l. Handle wheel 18 is stationary securable over and with end-section of shaft 16 in such a position that, when it is so secured, the distance between handle 18 and the bushing of gear 17 would equal approximately three side-wall thicknesses of base 11. Section 16A of shaft 16 is located in the middle of said distance, is of slightly larger diameter than the rest of shaft 16, is threaded, and is of length equal substantially to one side-wall thickness of base 11.

Side wall of base 11 has hole 11A at: predetermined point and tapped for threaded section 16A of shaft 16 inserted therethrough, as shown. Opposite side wall of base 11 (FIGURE l) has plain hole opposite the tapped (threaded) hole 11A, for loose fit with plain loose-endsection of shaft 16 inserted therethrough, as shown.

Lateral displacement (disalignment) of gears 14 and 15 in relation to each other is slightly greater than the thickness of gear 17, as shown in FIGURES l0, 1l and 12.

Due to said described and illustrated arrangement it is quite apparent that when secured handle 18 is continuously rotated contra-clockwise (FIGURES l0 and l) the section of shaft 16 (between bushing 44 and threaded section 16A) will remain directly within hole 11A thus holding gear 17 meshed only with gear 14 (FIGURE l0) for turning latter clockwise.

When rotation of handle 18 is being reversed (FIG- URE ll) the threads of section 16A will engage with threads in tapped hole 11A which automatically will cause shaft 16 to start moving sidewise to the left carrying drive gear 17 along from its meshing engagement with reel gear 14 to meshing engagement with reel gear 1S.

As the said reversed -rotation of handle 18 continues clockwise the threaded section 16A will automatically screw itself fully into the tapped hole 11A and clear out of it on the other side of wall of support. 11 (FIGURE l2) thus automatically moving shaft 16 to the left until handle 18 contacts side-wall of support 11 and lthus stops further leftwise movement of shaft 16. When this occurs the latter has already carried automatically the drive gear 17 fully away from reel gear 14 to meshing engagement with only reel gear 15.

Then, evidently, as long as handle 18 continues to be rotated clockwise the reel gear alone will remain meshed with drive gear 17 for being rotated thereby contra-clockwise.

But as soon as the turning of handle 18 is again reversed to contra-clockwise the threads of section 16A will catch the threads of tapped hole 11A, this time from the inner side of the side-wall of base 11, and the threaded section 16A will start screwing itself into the hole 11A, this time from left to right; as the turning of handle 18 continues contra-clockwise, section 16A will screw itself automatically through and clear out from hole 11A to the right, to position shown in FIGURE 10, where bushing-44-contact with inner-side of sidewall of base 11 would prevent its farther advance to the right. Thus ydrive shaft 16 and drive gear 17 would be again automatically carried from engagement with gear 15 now to original engagement with gear 14.

Iclaim:

1. For roller dictionary and like, conventionally including a base and, supported thereby, double reel, a web for rolling engagement with the reels, web variable exhibitor, axially displaceable gear drive for alternate rotation of the reels and including three separate gear axles turnably held in base parallel to each other at predetermined distance from each other, and thereof middle axle held movable also sidewise, and the other two axles being the respective axles of said double reel; an improvement for displacing the gear drive automatically in response to reversal of turning direction of said middle axle, and comprising two gear wheels respectively secured over two axles and held thereon in predetermined lateral displacement in relation to each other, a third gear wheel teethed for meshing with either of said two other gear wheels and stationary secured over and with said middle axle at predetermined point thereon, an elongated se-ction of said middle axle extends sidewise beyond its gear wheel towards and through a threaded hole in a stationary support secured with said base, said elongated section of said middle axle includes lengthwise three .successive sub-sections thereof, the middle sub-section thereof is th-readed for engaging with threads in said hole, and the respectively adjacent thereto two sub-sections being each of slightly smaller diameter than said middle sub-section, and identifiable as the thinner sub-sections, and of respective lengths adapted to fit but loosely with, in and when respectively in respective positions within said threaded hole; and whereby Continous turning of said middle axle in one predetermined direction keeps one of said thinner sub-sections continuously in position within said hole, and the reversal of direction of said turning causes engagement of the threads of said middle sub-section with threads in said hole and thus the screwing Iof Said middle sub-section into, through and beyond said hole, and, in said process, automatic moving of said middle axle and its secured thereto gear wheel sidewise from engagement with one reel gear wheel to engagement with, disaligned with latter, other 4reel gear wheel, and brings the other thinner sub-section of said middle axle into position within said hole until the turning direction of said middle axle is again being reversed when the process repeats itself backwards.

2. For roller dictionary and like conventionally including a base and, supported thereby, double reel, a web for rolling engagement with the reels, and axially displaceable gear -drive for alternate rotation of the reels and including three separate geared axles turnably held in base parallel to each other and at predetermined distance from each other, and the thereof middle axle having its gear stationary secured thereto at predetermined point thereon, and said axle, with its so stationary secured thereon gear, being held movable also sidewise in relation to the other two axles which are the axles of said double reel and have their respective gears held thereon respectively in predetermined and stationary disalignment in relation to each other at predetermined therefor respective points respectively thereon; an improvement in the axially displaceable gear drive and comprising springless means for moving the middle axle sidewise automatically from one predetermined position to an- -other predetermined position in relation to the double reel axles when its turning direction is and continues to be reversed; and ratchet means for .releasing one reel gear from bond with its respective roller axle when said reel axle is being turned in one predetermined direction, and for releasing the other roller gear from bond with its respective reel axle when latter is being turned in the opposite direction.

3. For roller dictionary and like conventionally including a base and, supported thereby, double reel, a web for rolling engagement with the reels, and a drive mechanism for alternate rotation of the reels; an improvement in motorized drive mechanism for alternate rotation of the reels and comprising a one-way-ratchet-means for associating with axle of one of the reels, and a contra-oneway-ratchet-means for associating with axle of the other reel, clock-wise motor driven shaft associated with one of said axles via one of said ratchet-means, and contraclockwise motor driven shaft associated with the other of said axles via the other of said ratchet-means; means for actuating and de-actuating said motor-driven shafts separately and alternately; and whereby, when and while one of said shafts is and continues to be actuated clockwise and the second shaft remains de-actuated, one of said axles is and remains in bond with the actuated shaft and thereby is being turned in one direction, and the other axle then is not in bond with the other shaft when and while being turned in likewise direction by rolling web and remains free from dead weight of said other shaft; and vice versa; and means for regulating turning speed of each of said shafts when they are respectively actuated.

4. In device for rolling forth and back elongated sheet and including base and thereby supported double reel and actuating means for alternate rotation of thereof reels respectively in opposite directions an improvement for substantially instantaneous release of one reel from bond with said actuating means substantially simultaneously with and susbtantially immediately upon reversal of rotary direction and for binding each reel respectively and respectively only one reel with said actuating means when latter is actuated for rotation of the reels in either direction and dependent upon direction of the rotation and comprising for one component a rotary member of one reel, and for another component a mating therewith rotary member of said actuating means, a concaved seat in one of said two components, an outwardly resilient spring within said seat and supported by its bottom, a pin in said seat over said spring and normally protruding beyond said seat, an offset in opposite thereto wall of the other of said two components and for housing a protruding section of said pin when thereover, two descending sides of said offset opposite each other in way of rotation Iand referred to for later comparison as the left side and the right side respectively, the left side being substantially abrupt for clutching said pin, and the right side declining gradually for `sliding over said pin and thereby compressing the latter into said seat against resiliency of said spring, when said sides respectively are brought to press against said pin; for a contra-component a rotary member of the other reel, and for another contra-component a mating therewith another rotary member of said actuating means, a concaved seat in one of said two contracomponents, an outwardly resilient spring within the seat and supported by its bottom, a pin in the seat over the spring and normally protruding beyond the seat, an offset in opposite thereto Wall of the other of said two contra-components and for housing a protruding section of the pin when thereover, two descending sides of the offset opposite each other in way of rotation and referred to for prior comparison as the left side and the right side respectively, here the right side being substantially abrupt for clutching the pin, and the left side declining gradually for sliding over the pin and thereby compressing the latter ino the seat against resiliency of the spring, when said sides respectively are brought to press against the pin.

5. In device for rolling forth and back elongated sheet and including base and thereby supported double reel and actuating means for alternate rotation of thereof reels respectively in opposite direction an improvement consisting of a double ratchet means for substantially instantaneous release of one reel from bond with said actuating means substantially simultaneously with and substantially immediately upon the reversal of rotary direction and for binding each reel respectively and respectively only one reel With said actuating means when latter is actuated for rotation of the reels in either direction and comprising rst one-way ratchet means and second the contra-one-Way ratchet means, the rst thereof with one reel and the second thereof With the other reel, and both, said rst and said second ratchet means, with said actuating means for releasing from the latter one reel substantially simultaneously with binding the other reel with said actuating means, and vice versa, dependent upon direction of the rotation and substantially instantaneously upon reversal thereof.

6. In device for rolling forth and back elongated sheet and including base and thereby supported disalignedly geared double reel and, parallel therebetween, sidewise displaceable geared axle for alternate meshing with respective reels an improvement for sprinfgless sidewise displacement of said axle responsive to reversal of its rotating direction and for substantially instantaneous release of meshed therewith reel from bond with said axle immediately upon reversal of its rotating direction and, re-

spectively, comprising a tapped side support for the axle, 40

threaded axle section for axial forth-and-back engagement with the tap and confined to close proximity thereto when axially therebeyond on either side thereof; and

one-Way-ratchet between one reel and its gear, and the contra-one-way-ratchet between the other reel and its gear.

7. In device for rolling forth and back elongated sheet and including base and thereby supported double reel and actuating means for alternate rotation of thereof reels respectively in opposite directions by a joint thereof with one reel for rotating latter in one direction and by another joint thereof with the other Vreel for rotating latter in the opposite direction an improvement for substantially instantaneous release of either reel respectively from bond with the respectively related therewith joint when other joint is actuated for turning the other reel in the opposite direction and comprising one-Way-ratchet between one reel and the related therewith joint, and the contra-oneway-ratchet between the other reel and the related therewith other joint.

References Cited by the Examiner UNITED STATES PATENTS 250,236 11/1881 Hackney 40-93 712,143 10/1902 Kneedler 40-93 774-,527 11/ 1904 Maxwell 40-93 1,181,405 5/1916 Pike 40-94 1,548,019 8/1925 Babson et al 40-95 1,801,139 4/1931 Chalek 40-95 1,845,550 2/1932 Metze 40-92 2,3 30,677 9/1943 Caneld 192-46 2,331,149 10/1943 Van Vuren 120-29 2,657,487 11/1953 Sprung 40-86 FOREIGN PATENTS 596,901 8/ 1925 France.

656,639 l/1929 France.

152,618 10/ 1920 Great Britain.

352,872 7/1931 Great Britain.

519,844 4/ 1940 Great Britain.

EUGENE R. CAPOZIO, Primary Examiner.

EDWARD V. BENHAM, JEROME SCHNALL,

Examiners.

WENCELSO T. CONTRERAS, Assistant Examiner. 

1. FOR ROLLER DICTIONARY AND LIKE, CONVENTIONALLY INCLUDING A BASE AND, SUPPORTED THEREBY, DOUBLE REEL, A WEB FOR ROLLING ENGAGEMENT WITH THE REELS, WEB VARIABLE EXHIBITOR, AXIALLY DISPLACEMENT GEAR DRIVE FOR ALTERNATE ROTATION OF THE REELS AND INCLUDING THREE SEPARATE GEARAXLES TURNABLY HELD IN BASE PARALLEL TO EACH OTHER AT PREDETERMINED DISTANCE FROM EACH OTHER, AND THEREOF MIDDLE AXLE HELD MOVABLE ALSO SIDEWISE, AND THE OTHER TWO AXLES BEING THE RESPECTIVE AXLES OF SAID DOUBLE REEL; AN IMPROVEMENT FOR DISPLACING THE GEAR DRIVE AUTOMATICALLY IN RESPONSE TO REVERSAL OF TURNING DIRECTION OF SAID MIDDLE AXLE, AND COMPRISING TWO GEAR WHEELS RESPECTIVELY SECURED OVER TWO AXLES AND HELD THEREON IN PREDETERMINED LATERAL DISPLACEMENT IN RELATION TO EACH OTHER, A THIRD GEAR WHEEL TEETHED FOR MESHING WITH EITHER OF SAID TWO OTHER GEAR WHEELS AND STATIONARY SECURED OVER AND WITH SAID MIDDLE AXLE AT PREDETERMINED POINT THEREON, AN ELONGATED SECTION OF SAID MIDDLE AXLE EXTENDS SIDEWISE BEYOND ITS GEAR WHEEL TOWARDS AND THROUGH A THREADED HOLE IN A STATIONARY SUPPORT SECURED WITH SAID BASE, SAID ELONGATED SECTION OF SAID MIDDLE AXLE INCLUDES LENGTHWISE THREE SUCCESSIVE SUB-SECTIONS THEREOF, THE MIDDLE SUB-SECTION THEREOF IS THREADED FOR ENGAGING WITH THREADS IN SAID HOLE, 